Combined auto jack and safety-brake



W. SCOTT.

COMBINED AUTO JACK AND SAFETY BRAKE.

APPLlCATlON FILED DEC. 20, 1919- Patented Mar. 1, 1921.

4 SHEETS-SHEET I.

W. SCOTT.

COMBINED AUTO JACK AND SAFETY BRAKE.

APPLICATION FILED DEC.20, 1919.

1 370,49 1 Patented Mar. 1, 1921.

4 SHEETSSHEET 2.

fi IZ'ZZz'a 277,520 22 [721 822 far W. SCOTT.

COMBINED AUTO JACK AND SAFETY BRAKE.

APPLICATION FILED DEC .20, I919.

11 2. 9 1T an 1 4 mm .Nm dw m n 6 T a D1 fifz'llz'a 227,900 22 [22 2/672 50 r W. SCOTT.

COMBINED AUTO JACK AND SAFETY BRAKE.

APPLICAUON FILED DEC.20, 1919.

1,370,491 Patented Mar- 1, 1921.

4 SHEETSSHEET 4.

UNITED STATES PATENT OFFICE.

WILLIAM SCOTT, OF JACKSONVILLE, FLORIDA, ASSIGNOR OF ONE-SIXTH TO JOSEPH B. GOLDSMITH AND ONE-SIXTH TO JACOB SHAMSKY, BOTH OF ST. LOUIS, MISSOURI.

COMBINED AUTO JACK AND SAFETY-BRAKE.

Application filed December 20, 1919.

T 0 dutch-01bit may concern Be it known that I, IVILLIAM Soon, a citizen of the United States, residing at Jacksonville, in the county of Duval and State of Florida, have invented new and useful Improvements in Combined Auto Jacks and Safety-Brakes, of which the following is a specification.

This invention relates to a combined jack and safety brake for automobiles and the principal object of the invention is to provide a jack for every wheel of the vehicle with means foractuatin said jacks by the motor or manually.

Another object of the invention is to provide means whereby each jack may be actuated independently of the other jacks or all together.

This invention also consists in certain other features of construction and in the combination and arrangement of the several parts, to be hereinafter fully described, illustrated in the accompanying drawings and specifically pointed out in. the appended claims.

In describing my invention in detail, reference will be had to the accompanying drawings wherein like characters denote like or corresponding parts throughout the several views, and in which Figure 1 is a plan view showing the ap plication of the invention.

Fig. 2 is a detail View showing the jack applied to the front axle.

Fig. 3 is a side view of Fig. 2.

Fig. 4 is a view showing the jack applied to the rear axle.

Fig. 5 is a side view of Fig. 4.

Fig. 6 is a cross section showing the controlling means for the jack.

Fig. 7 is a plan view of the pedal means shown in Fig. 6.

Fig. 8 is a side viewof the actuating lever and its associated parts.

Fig. 9 is a front view of said lever.

Fig. 10 is a detail view.

In these views A indicates the frame of the automobile, 1 the rear axle, 2 the front axle and 3 the wheels. In carrying out my invention I secure a pair of jacks 4 on the front axle and a pair of jacks 5 on the rear axle, each jack being located adjacent a wheel. 1

Each of the front jacks consists of a member 6 formed of two parts and bolted to the Specification of Letters Patent.

Patented Mar. 1, 1921.

Serial No. 346,403.

axle. This member is provided with a pair of vertically arranged holes 7 to slidingly receive the uprights 8. Cross pieces 9 connect the ends of the uprights together at their upper and lower ends. A spring 10 connects the lower cross piece with the memher 6 and tends to hold the jack at its upper and inoperative position and also against a drum 11 which is located on a shaft 12 rotatably supported by the frame A of the vehicle. A cable 13 has one end secured to the drum and its other end secured to the upper cross piece and said cable passes around a pulley 14: carried by the member 6. This cable is so arranged that as the shaft and drum is rotated the cable will be wound upon the drum and the jack lowered against the action of the spring.

The rear jacks 5 are similarly formed ex-v cepting the lower cross pieces 9' of these jacks are provided with beveled front ends, as shown in Fig. 5, to permit these pieces to slide along the road surface without digging into said surface. These rear jacks are also provided with a brace 15, each of which is pivoted to the cross pieces 9 and has its upper end slotted as at 16 to engage a bolt 17 on the frame A. These brace pieces will prevent any tendency of the rear jacks to rotate on the rear axle when the jacks are dropped with the car under motion.

Each of the shafts 12 extends to the central part of the frame and each shaft is provided with a crank 18 at its end and a crank 19 intermediate its ends. Each of the cranks 18 is connected with a rack bar 20. These rack bars are slidably supported on the rollers 21 and 21'. The pair of rack bars on one side of the vehicle are arranged above the plane of the pair of rack bars on the other side of the vehicle and the two. pairs have their teeth oppositely arranged as shown in Fig. 6. Toothed wheels 22 are secured to the drive shaft 23 and these wheelsare located between the upper and lower pairs of rack bars. The rollers 21, which are carried by the supporting brackets 2%, will support the lower rack bars in a position with their teeth spaced from said wheels and the springs 25 carried by the brackets 26 will force the rollers 21' upwardly to throw the upper rack bars against rollers 27 carried by the rods 28. In this position the upper rack bars will also be spacedfrom the toothed wheels. The rods 28 are slidably supportedin the frame 29 and pass through the floor of the automobile. Their upper ends are provided with the tread parts 30. A pair of slidable rods 31 also pass through the floor and has the tread parts 32 and these rods are connected with the brackets 24 by the levers 33 which are pivoted intermediatetheir endsto the frame 29, as at 34t. It will thus be seen that when one of the rods 28 or 31 is depressed by the foot of the operator pressing on its tread part, one of the rack bars will be brought into engagement with one of the toothed wheels and as said wheels are being rotated by the drive shaft the rack bar will be moved inwardly and thus the shaft 12 connected with said rack bar willbe rotated to cause the drum to wind'up the cable and thus lower the jack.

I provide means for bringing all of the rack bars into engagement with the toothed wheels simultaneously, such means'consisting of a cross piece 35 having a tread part 36 arranged over the upper ends of the rods 28 and 31. This'cross piece is provided with a vertically disposed part 37 at each end thereof which passes through the floor and a. 'part of. the frame 29 in which it'is slidablysupported. A spring 38 "on each of'the parts 37 tends to hold the cross piece in its upper position. By pressing on the part 36 with the foot the cross piece '35 will be lowered and thus all the rods 28 and 31 will be lowered to throw all therack bars in engagement with their toothed wheels and thusallthe 1acks will be'l'owered to raise all four of the wheels off the. ground."

In order to lower the jacks manually I provide a lever 39 pivoted to the frame of the vehicle and provided with the usual hand operated dog 40, which cooperates with the segmental. Four arms 42 are pivoted on the pivot pin 43 of the "lever and their upper ends are notched as at 44. Each of these notches is adapted to be engaged by a latch 45 carried by the lever 39 so that anyone or all of said arms may be connected withthe lever; The lower ends of said arms are connected with the cranks 19 of the shafts 12 by means ofthe cables 46, thebell cranks 47 and rods 4L8. "The cables, actuatsary to keep them in lowered position by the hand operated means just described as otherwise the springs 10 would return thejacks to inoperative position.

;It willthus beseen that desired wheel motor driven means or manually, or two three or four of the wheels maybe raised if desired.

My invention may also be used as an emergency brake when it is desired to stop the vehicle suddenly to prevent an accident.

On such an occasion the two rear jacks are lowered to throw the rear wheels out of contact with the. ground. lVhen this is done the cross pieces 9 of the rear jacks will slide a short distance on the road surface but this 7 distance will be so slight that the vehicle will be practically brought to a dead stop.

I may provide a key actuated lock for the dog 10 as shown at 40 to prevent unauthorized use of the automobile. I may also provide an oifse't shoulder 2O on the rack bars 20 which are adapted to engage a collar 22 7 on the toothed wheel22 to throw said rack bars out of engagement with the toothed wheel at the proper time.

It is thought from the foregoing description that the advantages and novel features of my invention will be readily apparent.

I desire it to be understood that I may make changes in the construction and in the e combination and arrangement of the several parts, provided that such changes fall within the scope of the appended claims.

What I claim is 1. In combination with a motor driven vehicle, a pair of jacks connected with each axle adjacent the wheels, means for normally holding said jacks in raised position, means for connecting each jackwith the driven shaft of the vehicle and manually operated means for moving any one or all of the said connecting means into and'out'of operative position.

2. In combination with a motor vehicle,.a pair of jacks carried by-each axle, means for normally holding said jacks in raised position, means for connecting each jack with the-drivenshaft of the vehicle, manually op- 'erated means for moving any one or all of Y the said connecting means into and out of l operative -pos1t1on and manually operated means for actuating the jack operating means. 7 3.. In combination with a :motor vehicle, a

pair of jacks connected with each axle, ac- 5- tuating means for 'loweringeach jack, means for connecting said actuating means with the driven shaft of the vehicle, m anua*lly operated means forming partpf' the connecting means and manually operating means for holding the jacks in lowered positions after they are lowered by the before mentioned actuating means, and means *for aut;o-- matically raising the jacks when released from the holding means. 7 I f 1 p i 4. In combination with a motor driven vehicle, a, pair of jacks-connected with each axle, means for normally holding said jacks in raised position, actuating means for lowering the jacks, means for connecting said'130 actuating means with the driven shaft of the Vehicle, such means including manually operated means, a hand lever and means connecting the hand lever with the actuating means, said connecting means including means for connecting the hand lever with any one or all of the actuating means.

5. In combination with a motor driven vehicle, a pair of jacks connected with each axle, springs for normally holding the jacks in raised position, a pair of shafts located on each side of the vehicle, a drum on each shaft a cable connecting each drum with each ack, a pair of cranks on each Shaft, a rack bar connected with one of the cranks on each shaft, toothed wheels secured to the driven shaft of the vehicle, foot operated means for moving any one or all of said rack bars into engagement with the toothed wheels, a hand lever, four arms associated with the hand lever, means for connecting each arm with the other crank on each shaft and latch means for connecting each of said arms with the lever.

6. In combination with a motor vehicle, a pair of jacks connected with each axle thereof, a drum for each jack, a flexible member connecting each drum with each jack, manually operated means for rotating the drums to lower the acks, and means for automatically returning the jacks to raised position.

7. In combination with a motor driven vehicle, a pair of jacks connected with each axle thereof, a drum for each jack, a cable connecting the drum with the jack, means for rotating the drums by the driven shaft ofthe vehicle to lower the jacks, and spring means for automatically returning the jacks to raised position.

In testimony whereof I affix my signature.

WILLIAM SCOTT. 

